Belem serves as the major port city on this river's estuary, and at this ri
Belem serves as the major port city on this river's estuary, and at this river's mouth, the Para river joins with it to form the island of Marajo. In 1541, Francisco de Orellana followed this river in a quest to find El Dorado, and the Country of Cinnamon and the Casiquaire (kaz-ik-yea) canal connects this river's basin to the [*] Orinoco river. This river's tributaries include the Manaus and Madeira, and it is home to species such as the giant otter, its namesake river dolphin, and the piranha. For 10 points, name this South American river, nicknamed the River Sea for its immense volume, which flows through the world's largest tropical rainforest.
Belem serves as the major port city on this river's estuary, and at this river's mouth, the Para river joins with it to form the island of Marajo.
{Amazon} River